Projects
Projects we are leading and or contributing to
SEM4CITIES DESCRIPTION
A large amount of energy is consumed to create comfort and productive built environments for people in high-density cities, which is associated with large amount of carbon emissions. To increase the use of renewable energy in high density cities, new methods and tools are needed. As energy systems in buildings, districts and cities are complex, energy saving and energy flexibility provision must reflect system physics to avoid sub-optimal energy management. Thus, SEM4Cities integrates system physics in a hierarchical spatial and temporal framework, including models for energy aggregation at all levels, combing machine learning with mathematical models of known physical processes. SEM4Cities brings universities, living labs and companies in with complementary expertise and technologies together to accelerate the green transition.
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SEM4CITIES GOAL
SEM4Cities aims to develop innovative smart energy management technologies and solutions for buildings and districts in high-density cities by effectively leveraging advanced big data and AI technologies. These include:
- data driven predictive models for energy dynamics characterization and energy flexibility prediction for buildings and districts;
- AI-powered model predictive control and optimization methods for distributed energy systems; and
- game theory-based methods for optimization and coordination of buildings and distributed energy systems.
Acronym: SEM4Cities
Status: Active
Effective start/end date: 2021 - 2024
Link: https://sites.dtu.dk/sem4cities
HUIL-DEMAND DESCRIPTION
Many buildings suffer from a "performance gap", due to inefficient operations and irrational occupant behaviour, which, combined, jeopardize the effort to make the building stock carbon neutral, affecting both CO2 emissions and health and comfort of occupants. Goal of HuiL-DEMand is to demonstrate the integration of the personal perception of the indoor climate into the management system of buildings. We do this by further developing a software platform for the monitoring and management of buildings, that integrates information from IoT sensors (measuring temperature, humidity, CO2 concentration, etc.), devices measuring system performance (energy use, system temperature), and outdoor climate conditions, together with the subjective feed-back of the occupants. With this software solution, occupants are no longer requested to enter setpoint of thermostats. Instead, when they perceive a discomfort, they can use a dedicated mobile app to rate the indoor environment. The data-driven algorithms demonstrated in this project will use and combine the objective measurements from the IoT devices and the subjective feedback from the occupants, together with weather forecast services, to properly control the heating of two school buildings at room level, maximising comfort and optimising the energy use. Besides, state-of-art AI is used for fault detection in systems and buildings control.
HUIL-DEMAND GOAL
The project aims at reducing the overall CO2 emissions related to heating of buildings, while maximising the indoor environmental quality for the occupants through a robust, scalable and easy-to-implement software solution. The vendor-neutral CLIMIFY platform, integrates the measurements of indoor climate, heating system parameters, energy use together with occupant responses.
Acronym: HuiL-DEMand
Status: Active
Effective start/end date: 2021 - 2024
Link: https://energiforskning.dk/en/node/16249
ELEXIA DESCRIPTION
Existing tools for planning and operating local energy systems are fragmented. At the same time, general-purpose tools are being developed that could potentially provide many of the functionalities of process-specific tools while also allowing integrated planning and operational management. ELEXIA sets out to advance the technological-readiness level (TRL) of such tools and to combine them into a robust Digital Service Platform (DSP) for local site managers and planners. The tools will need to address 3 other major challenges in addition to that of integration: Increased need for flexibility. Greatly increased data transfer and processing needs necessitating the use of interoperable, cyber secure and privacy-preserving digital platforms. Social, environmental, and economic sustainability aspects need to be included in the decision-making.
ELEXIA GOAL
Nowadays, an effective, affordable decarbonization of the European economy, along with increased operational flexibility and energy efficiency are more imperative than ever and raise a need to adapt the existing regulatory frameworks, energy markets, and infrastructures to an integrated energy system. This is where ELEXIA comes in, aiming to integrate energy systems and facilitate the shift towards digital transition. This integrated system will allow optimization and create flexibility for the power system and therefore achieve a more controllable electricity demand.
Acronym: ELEXIA
Status: Active
Effective start/end date: 2022 - 2026
Link: https://www.elexia-project.eu/
RePUP DESCRIPTION
The global deep decarbonization target is jeopardized due to a large energy demand from underperforming buildings. This includes both refurbished and recent building stock. Such buildings provide poor occupants’ comfort and suboptimal use of energy. In the RePUP (Real-time Performance UPgrade of buildings) project we develop, assess and implement a modular and reliable real-time management solution for bridging the performance gap of the existing buildings. This gap is related to both broken occupant´s expectations as well as overproduction of CO2 emissions, caused by an intense and poorly controlled use of energy. The ground-breaking human-in-the-loop (HuiL) approach from RePUP is applicable to many types of buildings with different insulation levels, thermal mass and building service systems. A consortium of nine partners (see RePUP goals) from companies and academia is contributing to the research and development with their complimentary expertise.
Case studies
Few of our case studies with details
RUNGSTED SKOLE - HØRSHOLM KOMMUNE
In Rungsted Skole CLIMIFY is monitoring the indoor environment in classrooms and most frequented areas, such as workshops, theater, the library and the halls. The school has a hydronic heating system and a well-functioning ventilation system. Goal of the monitoring was to prove indoor air quality and indoor environmental conditions, due to complaints about IAQ. CLIMIFY proved that the ventilation system is functioning correctly, but that in sunny days indoor temperature in some of the classrooms tends to be high. For this reason, the municipality is now considering to plant trees on the facade, to avoid overheating.
BIRKERØD SKOLE - RUDERSDAL KOMMUNE
Birkerød skole is 1 of the approximately 20 buildings monitored by CLIMIFY in the Rudersdal municipality. The school is part of the HuiL-DEMand project, financed by EUDP (Danish Energy Agency). Here, together with DTU and other partners, CLIMIFY is testing several evaluation and control algorithms, and is demonstrating the usage of our feedback app FeedMe. The temperature in the different classrooms and common areas is controlled through smart thermostats, directly through the CLIMIFY’s algorithms
BORGERSKOLEN - HØJE-TAASTRUP KOMMUNE
The school adopted the CLIMIFY and FEEDME systems in 2018 and 2020, respectively. Smart thermostats were installed, replacing the older manual thermostats, providing room-wise indoor climate control. The use of CLIMIFY helped building’s managers and teachers visualize the indoor climate and objectively identify issues.
